diff options
Diffstat (limited to 'src/win32/win_net.c')
| -rw-r--r-- | src/win32/win_net.c | 1032 |
1 files changed, 1032 insertions, 0 deletions
diff --git a/src/win32/win_net.c b/src/win32/win_net.c new file mode 100644 index 0000000..3f430fc --- /dev/null +++ b/src/win32/win_net.c @@ -0,0 +1,1032 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2006 Tim Angus + +This file is part of Tremulous. + +Tremulous is free software; you can redistribute it +and/or modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 2 of the License, +or (at your option) any later version. + +Tremulous is distributed in the hope that it will be +useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with Tremulous; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +// net_wins.c + +#include "../qcommon/q_shared.h" +#include "../qcommon/qcommon.h" +#include "win_local.h" + +static WSADATA winsockdata; +static qboolean winsockInitialized = qfalse; +static qboolean usingSocks = qfalse; +static qboolean networkingEnabled = qfalse; + +static cvar_t *net_noudp; +static cvar_t *net_noipx; + +static cvar_t *net_socksEnabled; +static cvar_t *net_socksServer; +static cvar_t *net_socksPort; +static cvar_t *net_socksUsername; +static cvar_t *net_socksPassword; +static struct sockaddr socksRelayAddr; + +static SOCKET ip_socket; +static SOCKET socks_socket; +static SOCKET ipx_socket; + +#define MAX_IPS 16 +static int numIP; +static byte localIP[MAX_IPS][4]; + +//============================================================================= + + +/* +==================== +NET_ErrorString +==================== +*/ +char *NET_ErrorString( void ) { + int code; + + code = WSAGetLastError(); + switch( code ) { + case WSAEINTR: return "WSAEINTR"; + case WSAEBADF: return "WSAEBADF"; + case WSAEACCES: return "WSAEACCES"; + case WSAEDISCON: return "WSAEDISCON"; + case WSAEFAULT: return "WSAEFAULT"; + case WSAEINVAL: return "WSAEINVAL"; + case WSAEMFILE: return "WSAEMFILE"; + case WSAEWOULDBLOCK: return "WSAEWOULDBLOCK"; + case WSAEINPROGRESS: return "WSAEINPROGRESS"; + case WSAEALREADY: return "WSAEALREADY"; + case WSAENOTSOCK: return "WSAENOTSOCK"; + case WSAEDESTADDRREQ: return "WSAEDESTADDRREQ"; + case WSAEMSGSIZE: return "WSAEMSGSIZE"; + case WSAEPROTOTYPE: return "WSAEPROTOTYPE"; + case WSAENOPROTOOPT: return "WSAENOPROTOOPT"; + case WSAEPROTONOSUPPORT: return "WSAEPROTONOSUPPORT"; + case WSAESOCKTNOSUPPORT: return "WSAESOCKTNOSUPPORT"; + case WSAEOPNOTSUPP: return "WSAEOPNOTSUPP"; + case WSAEPFNOSUPPORT: return "WSAEPFNOSUPPORT"; + case WSAEAFNOSUPPORT: return "WSAEAFNOSUPPORT"; + case WSAEADDRINUSE: return "WSAEADDRINUSE"; + case WSAEADDRNOTAVAIL: return "WSAEADDRNOTAVAIL"; + case WSAENETDOWN: return "WSAENETDOWN"; + case WSAENETUNREACH: return "WSAENETUNREACH"; + case WSAENETRESET: return "WSAENETRESET"; + case WSAECONNABORTED: return "WSWSAECONNABORTEDAEINTR"; + case WSAECONNRESET: return "WSAECONNRESET"; + case WSAENOBUFS: return "WSAENOBUFS"; + case WSAEISCONN: return "WSAEISCONN"; + case WSAENOTCONN: return "WSAENOTCONN"; + case WSAESHUTDOWN: return "WSAESHUTDOWN"; + case WSAETOOMANYREFS: return "WSAETOOMANYREFS"; + case WSAETIMEDOUT: return "WSAETIMEDOUT"; + case WSAECONNREFUSED: return "WSAECONNREFUSED"; + case WSAELOOP: return "WSAELOOP"; + case WSAENAMETOOLONG: return "WSAENAMETOOLONG"; + case WSAEHOSTDOWN: return "WSAEHOSTDOWN"; + case WSASYSNOTREADY: return "WSASYSNOTREADY"; + case WSAVERNOTSUPPORTED: return "WSAVERNOTSUPPORTED"; + case WSANOTINITIALISED: return "WSANOTINITIALISED"; + case WSAHOST_NOT_FOUND: return "WSAHOST_NOT_FOUND"; + case WSATRY_AGAIN: return "WSATRY_AGAIN"; + case WSANO_RECOVERY: return "WSANO_RECOVERY"; + case WSANO_DATA: return "WSANO_DATA"; + default: return "NO ERROR"; + } +} + +void NetadrToSockadr( netadr_t *a, struct sockaddr *s ) { + memset( s, 0, sizeof(*s) ); + + if( a->type == NA_BROADCAST ) { + ((struct sockaddr_in *)s)->sin_family = AF_INET; + ((struct sockaddr_in *)s)->sin_port = a->port; + ((struct sockaddr_in *)s)->sin_addr.s_addr = INADDR_BROADCAST; + } + else if( a->type == NA_IP ) { + ((struct sockaddr_in *)s)->sin_family = AF_INET; + ((struct sockaddr_in *)s)->sin_addr.s_addr = *(int *)&a->ip; + ((struct sockaddr_in *)s)->sin_port = a->port; + } + else if( a->type == NA_IPX ) { + ((struct sockaddr_ipx *)s)->sa_family = AF_IPX; + memcpy( ((struct sockaddr_ipx *)s)->sa_netnum, &a->ipx[0], 4 ); + memcpy( ((struct sockaddr_ipx *)s)->sa_nodenum, &a->ipx[4], 6 ); + ((struct sockaddr_ipx *)s)->sa_socket = a->port; + } + else if( a->type == NA_BROADCAST_IPX ) { + ((struct sockaddr_ipx *)s)->sa_family = AF_IPX; + memset( ((struct sockaddr_ipx *)s)->sa_netnum, 0, 4 ); + memset( ((struct sockaddr_ipx *)s)->sa_nodenum, 0xff, 6 ); + ((struct sockaddr_ipx *)s)->sa_socket = a->port; + } +} + + +void SockadrToNetadr( struct sockaddr *s, netadr_t *a ) { + if (s->sa_family == AF_INET) { + a->type = NA_IP; + *(int *)&a->ip = ((struct sockaddr_in *)s)->sin_addr.s_addr; + a->port = ((struct sockaddr_in *)s)->sin_port; + } + else if( s->sa_family == AF_IPX ) { + a->type = NA_IPX; + memcpy( &a->ipx[0], ((struct sockaddr_ipx *)s)->sa_netnum, 4 ); + memcpy( &a->ipx[4], ((struct sockaddr_ipx *)s)->sa_nodenum, 6 ); + a->port = ((struct sockaddr_ipx *)s)->sa_socket; + } +} + + +/* +============= +Sys_StringToAdr + +idnewt +192.246.40.70 +12121212.121212121212 +============= +*/ +#define DO(src,dest) \ + copy[0] = s[src]; \ + copy[1] = s[src + 1]; \ + sscanf (copy, "%x", &val); \ + ((struct sockaddr_ipx *)sadr)->dest = val + +qboolean Sys_StringToSockaddr( const char *s, struct sockaddr *sadr ) { + struct hostent *h; + int val; + char copy[MAX_STRING_CHARS]; + + memset( sadr, 0, sizeof( *sadr ) ); + + // check for an IPX address + if( ( strlen( s ) == 21 ) && ( s[8] == '.' ) ) { + ((struct sockaddr_ipx *)sadr)->sa_family = AF_IPX; + ((struct sockaddr_ipx *)sadr)->sa_socket = 0; + copy[2] = 0; + DO(0, sa_netnum[0]); + DO(2, sa_netnum[1]); + DO(4, sa_netnum[2]); + DO(6, sa_netnum[3]); + DO(9, sa_nodenum[0]); + DO(11, sa_nodenum[1]); + DO(13, sa_nodenum[2]); + DO(15, sa_nodenum[3]); + DO(17, sa_nodenum[4]); + DO(19, sa_nodenum[5]); + } + else { + ((struct sockaddr_in *)sadr)->sin_family = AF_INET; + ((struct sockaddr_in *)sadr)->sin_port = 0; + + if( s[0] >= '0' && s[0] <= '9' ) { + *(int *)&((struct sockaddr_in *)sadr)->sin_addr = inet_addr(s); + } else { + if( ( h = gethostbyname( s ) ) == 0 ) { + return 0; + } + *(int *)&((struct sockaddr_in *)sadr)->sin_addr = *(int *)h->h_addr_list[0]; + } + } + + return qtrue; +} + +#undef DO + +/* +============= +Sys_StringToAdr + +idnewt +192.246.40.70 +============= +*/ +qboolean Sys_StringToAdr( const char *s, netadr_t *a ) { + struct sockaddr sadr; + + if ( !Sys_StringToSockaddr( s, &sadr ) ) { + return qfalse; + } + + SockadrToNetadr( &sadr, a ); + return qtrue; +} + +//============================================================================= + +/* +================== +Sys_GetPacket + +Never called by the game logic, just the system event queing +================== +*/ +int recvfromCount; + +qboolean Sys_GetPacket( netadr_t *net_from, msg_t *net_message ) { + int ret; + struct sockaddr from; + int fromlen; + int net_socket; + int protocol; + int err; + + for( protocol = 0 ; protocol < 2 ; protocol++ ) { + if( protocol == 0 ) { + net_socket = ip_socket; + } + else { + net_socket = ipx_socket; + } + + if( !net_socket ) { + continue; + } + + fromlen = sizeof(from); + recvfromCount++; // performance check + ret = recvfrom( net_socket, net_message->data, net_message->maxsize, 0, (struct sockaddr *)&from, &fromlen ); + if (ret == SOCKET_ERROR) + { + err = WSAGetLastError(); + + if( err == WSAEWOULDBLOCK || err == WSAECONNRESET ) { + continue; + } + Com_Printf( "NET_GetPacket: %s\n", NET_ErrorString() ); + continue; + } + + if ( net_socket == ip_socket ) { + memset( ((struct sockaddr_in *)&from)->sin_zero, 0, 8 ); + } + + if ( usingSocks && net_socket == ip_socket && memcmp( &from, &socksRelayAddr, fromlen ) == 0 ) { + if ( ret < 10 || net_message->data[0] != 0 || net_message->data[1] != 0 || net_message->data[2] != 0 || net_message->data[3] != 1 ) { + continue; + } + net_from->type = NA_IP; + net_from->ip[0] = net_message->data[4]; + net_from->ip[1] = net_message->data[5]; + net_from->ip[2] = net_message->data[6]; + net_from->ip[3] = net_message->data[7]; + net_from->port = *(short *)&net_message->data[8]; + net_message->readcount = 10; + } + else { + SockadrToNetadr( &from, net_from ); + net_message->readcount = 0; + } + + if( ret == net_message->maxsize ) { + Com_Printf( "Oversize packet from %s\n", NET_AdrToString (*net_from) ); + continue; + } + + net_message->cursize = ret; + return qtrue; + } + + return qfalse; +} + +//============================================================================= + +static char socksBuf[4096]; + +/* +================== +Sys_SendPacket +================== +*/ +void Sys_SendPacket( int length, const void *data, netadr_t to ) { + int ret; + struct sockaddr addr; + SOCKET net_socket; + + if( to.type == NA_BROADCAST ) { + net_socket = ip_socket; + } + else if( to.type == NA_IP ) { + net_socket = ip_socket; + } + else if( to.type == NA_IPX ) { + net_socket = ipx_socket; + } + else if( to.type == NA_BROADCAST_IPX ) { + net_socket = ipx_socket; + } + else { + Com_Error( ERR_FATAL, "Sys_SendPacket: bad address type" ); + return; + } + + if( !net_socket ) { + return; + } + + NetadrToSockadr( &to, &addr ); + + if( usingSocks && to.type == NA_IP ) { + socksBuf[0] = 0; // reserved + socksBuf[1] = 0; + socksBuf[2] = 0; // fragment (not fragmented) + socksBuf[3] = 1; // address type: IPV4 + *(int *)&socksBuf[4] = ((struct sockaddr_in *)&addr)->sin_addr.s_addr; + *(short *)&socksBuf[8] = ((struct sockaddr_in *)&addr)->sin_port; + memcpy( &socksBuf[10], data, length ); + ret = sendto( net_socket, socksBuf, length+10, 0, &socksRelayAddr, sizeof(socksRelayAddr) ); + } + else { + ret = sendto( net_socket, data, length, 0, &addr, sizeof(addr) ); + } + if( ret == SOCKET_ERROR ) { + int err = WSAGetLastError(); + + // wouldblock is silent + if( err == WSAEWOULDBLOCK ) { + return; + } + + // some PPP links do not allow broadcasts and return an error + if( ( err == WSAEADDRNOTAVAIL ) && ( ( to.type == NA_BROADCAST ) || ( to.type == NA_BROADCAST_IPX ) ) ) { + return; + } + + Com_Printf( "NET_SendPacket: %s\n", NET_ErrorString() ); + } +} + + +//============================================================================= + +/* +================== +Sys_IsLANAddress + +LAN clients will have their rate var ignored +================== +*/ +qboolean Sys_IsLANAddress( netadr_t adr ) { + int i; + + if( adr.type == NA_LOOPBACK ) { + return qtrue; + } + + if( adr.type == NA_IPX ) { + return qtrue; + } + + if( adr.type != NA_IP ) { + return qfalse; + } + + // choose which comparison to use based on the class of the address being tested + // any local adresses of a different class than the address being tested will fail based on the first byte + + if( adr.ip[0] == 127 && adr.ip[1] == 0 && adr.ip[2] == 0 && adr.ip[3] == 1 ) { + return qtrue; + } + + // Class A + if( (adr.ip[0] & 0x80) == 0x00 ) { + for ( i = 0 ; i < numIP ; i++ ) { + if( adr.ip[0] == localIP[i][0] ) { + return qtrue; + } + } + // the RFC1918 class a block will pass the above test + return qfalse; + } + + // Class B + if( (adr.ip[0] & 0xc0) == 0x80 ) { + for ( i = 0 ; i < numIP ; i++ ) { + if( adr.ip[0] == localIP[i][0] && adr.ip[1] == localIP[i][1] ) { + return qtrue; + } + // also check against the RFC1918 class b blocks + if( adr.ip[0] == 172 && localIP[i][0] == 172 && (adr.ip[1] & 0xf0) == 16 && (localIP[i][1] & 0xf0) == 16 ) { + return qtrue; + } + } + return qfalse; + } + + // Class C + for ( i = 0 ; i < numIP ; i++ ) { + if( adr.ip[0] == localIP[i][0] && adr.ip[1] == localIP[i][1] && adr.ip[2] == localIP[i][2] ) { + return qtrue; + } + // also check against the RFC1918 class c blocks + if( adr.ip[0] == 192 && localIP[i][0] == 192 && adr.ip[1] == 168 && localIP[i][1] == 168 ) { + return qtrue; + } + } + return qfalse; +} + +/* +================== +Sys_ShowIP +================== +*/ +void Sys_ShowIP(void) { + int i; + + for (i = 0; i < numIP; i++) { + Com_Printf( "IP: %i.%i.%i.%i\n", localIP[i][0], localIP[i][1], localIP[i][2], localIP[i][3] ); + } +} + + +//============================================================================= + + +/* +==================== +NET_IPSocket +==================== +*/ +int NET_IPSocket( char *net_interface, int port ) { + SOCKET newsocket; + struct sockaddr_in address; + qboolean _true = qtrue; + int i = 1; + int err; + + if( net_interface ) { + Com_Printf( "Opening IP socket: %s:%i\n", net_interface, port ); + } + else { + Com_Printf( "Opening IP socket: localhost:%i\n", port ); + } + + if( ( newsocket = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP ) ) == INVALID_SOCKET ) { + err = WSAGetLastError(); + if( err != WSAEAFNOSUPPORT ) { + Com_Printf( "WARNING: UDP_OpenSocket: socket: %s\n", NET_ErrorString() ); + } + return 0; + } + + // make it non-blocking + if( ioctlsocket( newsocket, FIONBIO, (u_long *)&_true ) == SOCKET_ERROR ) { + Com_Printf( "WARNING: UDP_OpenSocket: ioctl FIONBIO: %s\n", NET_ErrorString() ); + return 0; + } + + // make it broadcast capable + if( setsockopt( newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof(i) ) == SOCKET_ERROR ) { + Com_Printf( "WARNING: UDP_OpenSocket: setsockopt SO_BROADCAST: %s\n", NET_ErrorString() ); + return 0; + } + + if( !net_interface || !net_interface[0] || !Q_stricmp(net_interface, "localhost") ) { + address.sin_addr.s_addr = INADDR_ANY; + } + else { + Sys_StringToSockaddr( net_interface, (struct sockaddr *)&address ); + } + + if( port == PORT_ANY ) { + address.sin_port = 0; + } + else { + address.sin_port = htons( (short)port ); + } + + address.sin_family = AF_INET; + + if( bind( newsocket, (void *)&address, sizeof(address) ) == SOCKET_ERROR ) { + Com_Printf( "WARNING: UDP_OpenSocket: bind: %s\n", NET_ErrorString() ); + closesocket( newsocket ); + return 0; + } + + return newsocket; +} + + +/* +==================== +NET_OpenSocks +==================== +*/ +void NET_OpenSocks( int port ) { + struct sockaddr_in address; + int err; + struct hostent *h; + int len; + qboolean rfc1929; + unsigned char buf[64]; + + usingSocks = qfalse; + + Com_Printf( "Opening connection to SOCKS server.\n" ); + + if ( ( socks_socket = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP ) ) == INVALID_SOCKET ) { + err = WSAGetLastError(); + Com_Printf( "WARNING: NET_OpenSocks: socket: %s\n", NET_ErrorString() ); + return; + } + + h = gethostbyname( net_socksServer->string ); + if ( h == NULL ) { + err = WSAGetLastError(); + Com_Printf( "WARNING: NET_OpenSocks: gethostbyname: %s\n", NET_ErrorString() ); + return; + } + if ( h->h_addrtype != AF_INET ) { + Com_Printf( "WARNING: NET_OpenSocks: gethostbyname: address type was not AF_INET\n" ); + return; + } + address.sin_family = AF_INET; + address.sin_addr.s_addr = *(int *)h->h_addr_list[0]; + address.sin_port = htons( (short)net_socksPort->integer ); + + if ( connect( socks_socket, (struct sockaddr *)&address, sizeof( address ) ) == SOCKET_ERROR ) { + err = WSAGetLastError(); + Com_Printf( "NET_OpenSocks: connect: %s\n", NET_ErrorString() ); + return; + } + + // send socks authentication handshake + if ( *net_socksUsername->string || *net_socksPassword->string ) { + rfc1929 = qtrue; + } + else { + rfc1929 = qfalse; + } + + buf[0] = 5; // SOCKS version + // method count + if ( rfc1929 ) { + buf[1] = 2; + len = 4; + } + else { + buf[1] = 1; + len = 3; + } + buf[2] = 0; // method #1 - method id #00: no authentication + if ( rfc1929 ) { + buf[2] = 2; // method #2 - method id #02: username/password + } + if ( send( socks_socket, buf, len, 0 ) == SOCKET_ERROR ) { + err = WSAGetLastError(); + Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() ); + return; + } + + // get the response + len = recv( socks_socket, buf, 64, 0 ); + if ( len == SOCKET_ERROR ) { + err = WSAGetLastError(); + Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() ); + return; + } + if ( len != 2 || buf[0] != 5 ) { + Com_Printf( "NET_OpenSocks: bad response\n" ); + return; + } + switch( buf[1] ) { + case 0: // no authentication + break; + case 2: // username/password authentication + break; + default: + Com_Printf( "NET_OpenSocks: request denied\n" ); + return; + } + + // do username/password authentication if needed + if ( buf[1] == 2 ) { + int ulen; + int plen; + + // build the request + ulen = strlen( net_socksUsername->string ); + plen = strlen( net_socksPassword->string ); + + buf[0] = 1; // username/password authentication version + buf[1] = ulen; + if ( ulen ) { + memcpy( &buf[2], net_socksUsername->string, ulen ); + } + buf[2 + ulen] = plen; + if ( plen ) { + memcpy( &buf[3 + ulen], net_socksPassword->string, plen ); + } + + // send it + if ( send( socks_socket, buf, 3 + ulen + plen, 0 ) == SOCKET_ERROR ) { + err = WSAGetLastError(); + Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() ); + return; + } + + // get the response + len = recv( socks_socket, buf, 64, 0 ); + if ( len == SOCKET_ERROR ) { + err = WSAGetLastError(); + Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() ); + return; + } + if ( len != 2 || buf[0] != 1 ) { + Com_Printf( "NET_OpenSocks: bad response\n" ); + return; + } + if ( buf[1] != 0 ) { + Com_Printf( "NET_OpenSocks: authentication failed\n" ); + return; + } + } + + // send the UDP associate request + buf[0] = 5; // SOCKS version + buf[1] = 3; // command: UDP associate + buf[2] = 0; // reserved + buf[3] = 1; // address type: IPV4 + *(int *)&buf[4] = INADDR_ANY; + *(short *)&buf[8] = htons( (short)port ); // port + if ( send( socks_socket, buf, 10, 0 ) == SOCKET_ERROR ) { + err = WSAGetLastError(); + Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() ); + return; + } + + // get the response + len = recv( socks_socket, buf, 64, 0 ); + if( len == SOCKET_ERROR ) { + err = WSAGetLastError(); + Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() ); + return; + } + if( len < 2 || buf[0] != 5 ) { + Com_Printf( "NET_OpenSocks: bad response\n" ); + return; + } + // check completion code + if( buf[1] != 0 ) { + Com_Printf( "NET_OpenSocks: request denied: %i\n", buf[1] ); + return; + } + if( buf[3] != 1 ) { + Com_Printf( "NET_OpenSocks: relay address is not IPV4: %i\n", buf[3] ); + return; + } + ((struct sockaddr_in *)&socksRelayAddr)->sin_family = AF_INET; + ((struct sockaddr_in *)&socksRelayAddr)->sin_addr.s_addr = *(int *)&buf[4]; + ((struct sockaddr_in *)&socksRelayAddr)->sin_port = *(short *)&buf[8]; + memset( ((struct sockaddr_in *)&socksRelayAddr)->sin_zero, 0, 8 ); + + usingSocks = qtrue; +} + + +/* +===================== +NET_GetLocalAddress +===================== +*/ +void NET_GetLocalAddress( void ) { + char hostname[256]; + struct hostent *hostInfo; + int error; + char *p; + int ip; + int n; + + if( gethostname( hostname, 256 ) == SOCKET_ERROR ) { + error = WSAGetLastError(); + return; + } + + hostInfo = gethostbyname( hostname ); + if( !hostInfo ) { + error = WSAGetLastError(); + return; + } + + Com_Printf( "Hostname: %s\n", hostInfo->h_name ); + n = 0; + while( ( p = hostInfo->h_aliases[n++] ) != NULL ) { + Com_Printf( "Alias: %s\n", p ); + } + + if ( hostInfo->h_addrtype != AF_INET ) { + return; + } + + numIP = 0; + while( ( p = hostInfo->h_addr_list[numIP] ) != NULL && numIP < MAX_IPS ) { + ip = ntohl( *(int *)p ); + localIP[ numIP ][0] = p[0]; + localIP[ numIP ][1] = p[1]; + localIP[ numIP ][2] = p[2]; + localIP[ numIP ][3] = p[3]; + Com_Printf( "IP: %i.%i.%i.%i\n", ( ip >> 24 ) & 0xff, ( ip >> 16 ) & 0xff, ( ip >> 8 ) & 0xff, ip & 0xff ); + numIP++; + } +} + +/* +==================== +NET_OpenIP +==================== +*/ +void NET_OpenIP( void ) { + cvar_t *ip; + int port; + int i; + + ip = Cvar_Get( "net_ip", "localhost", CVAR_LATCH ); + port = Cvar_Get( "net_port", va( "%i", PORT_SERVER ), CVAR_LATCH )->integer; + + // automatically scan for a valid port, so multiple + // dedicated servers can be started without requiring + // a different net_port for each one + for( i = 0 ; i < 10 ; i++ ) { + ip_socket = NET_IPSocket( ip->string, port + i ); + if ( ip_socket ) { + Cvar_SetValue( "net_port", port + i ); + if ( net_socksEnabled->integer ) { + NET_OpenSocks( port + i ); + } + NET_GetLocalAddress(); + return; + } + } + Com_Printf( "WARNING: Couldn't allocate IP port\n"); +} + + +/* +==================== +NET_IPXSocket +==================== +*/ +int NET_IPXSocket( int port ) { + SOCKET newsocket; + struct sockaddr_ipx address; + int _true = 1; + int err; + + if( ( newsocket = socket( AF_IPX, SOCK_DGRAM, NSPROTO_IPX ) ) == INVALID_SOCKET ) { + err = WSAGetLastError(); + if (err != WSAEAFNOSUPPORT) { + Com_Printf( "WARNING: IPX_Socket: socket: %s\n", NET_ErrorString() ); + } + return 0; + } + + // make it non-blocking + if( ioctlsocket( newsocket, FIONBIO, (u_long *)&_true ) == SOCKET_ERROR ) { + Com_Printf( "WARNING: IPX_Socket: ioctl FIONBIO: %s\n", NET_ErrorString() ); + return 0; + } + + // make it broadcast capable + if( setsockopt( newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof( _true ) ) == SOCKET_ERROR ) { + Com_Printf( "WARNING: IPX_Socket: setsockopt SO_BROADCAST: %s\n", NET_ErrorString() ); + return 0; + } + + address.sa_family = AF_IPX; + memset( address.sa_netnum, 0, 4 ); + memset( address.sa_nodenum, 0, 6 ); + if( port == PORT_ANY ) { + address.sa_socket = 0; + } + else { + address.sa_socket = htons( (short)port ); + } + + if( bind( newsocket, (void *)&address, sizeof(address) ) == SOCKET_ERROR ) { + Com_Printf( "WARNING: IPX_Socket: bind: %s\n", NET_ErrorString() ); + closesocket( newsocket ); + return 0; + } + + return newsocket; +} + + +/* +==================== +NET_OpenIPX +==================== +*/ +void NET_OpenIPX( void ) { + int port; + + port = Cvar_Get( "net_port", va( "%i", PORT_SERVER ), CVAR_LATCH )->integer; + ipx_socket = NET_IPXSocket( port ); +} + + + +//=================================================================== + + +/* +==================== +NET_GetCvars +==================== +*/ +static qboolean NET_GetCvars( void ) { + qboolean modified; + + modified = qfalse; + + if( net_noudp && net_noudp->modified ) { + modified = qtrue; + } + net_noudp = Cvar_Get( "net_noudp", "0", CVAR_LATCH | CVAR_ARCHIVE ); + + if( net_noipx && net_noipx->modified ) { + modified = qtrue; + } + net_noipx = Cvar_Get( "net_noipx", "0", CVAR_LATCH | CVAR_ARCHIVE ); + + + if( net_socksEnabled && net_socksEnabled->modified ) { + modified = qtrue; + } + net_socksEnabled = Cvar_Get( "net_socksEnabled", "0", CVAR_LATCH | CVAR_ARCHIVE ); + + if( net_socksServer && net_socksServer->modified ) { + modified = qtrue; + } + net_socksServer = Cvar_Get( "net_socksServer", "", CVAR_LATCH | CVAR_ARCHIVE ); + + if( net_socksPort && net_socksPort->modified ) { + modified = qtrue; + } + net_socksPort = Cvar_Get( "net_socksPort", "1080", CVAR_LATCH | CVAR_ARCHIVE ); + + if( net_socksUsername && net_socksUsername->modified ) { + modified = qtrue; + } + net_socksUsername = Cvar_Get( "net_socksUsername", "", CVAR_LATCH | CVAR_ARCHIVE ); + + if( net_socksPassword && net_socksPassword->modified ) { + modified = qtrue; + } + net_socksPassword = Cvar_Get( "net_socksPassword", "", CVAR_LATCH | CVAR_ARCHIVE ); + + + return modified; +} + + +/* +==================== +NET_Config +==================== +*/ +void NET_Config( qboolean enableNetworking ) { + qboolean modified; + qboolean stop; + qboolean start; + + // get any latched changes to cvars + modified = NET_GetCvars(); + + if( net_noudp->integer && net_noipx->integer ) { + enableNetworking = qfalse; + } + + // if enable state is the same and no cvars were modified, we have nothing to do + if( enableNetworking == networkingEnabled && !modified ) { + return; + } + + if( enableNetworking == networkingEnabled ) { + if( enableNetworking ) { + stop = qtrue; + start = qtrue; + } + else { + stop = qfalse; + start = qfalse; + } + } + else { + if( enableNetworking ) { + stop = qfalse; + start = qtrue; + } + else { + stop = qtrue; + start = qfalse; + } + networkingEnabled = enableNetworking; + } + + if( stop ) { + if ( ip_socket && ip_socket != INVALID_SOCKET ) { + closesocket( ip_socket ); + ip_socket = 0; + } + + if ( socks_socket && socks_socket != INVALID_SOCKET ) { + closesocket( socks_socket ); + socks_socket = 0; + } + + if ( ipx_socket && ipx_socket != INVALID_SOCKET ) { + closesocket( ipx_socket ); + ipx_socket = 0; + } + } + + if( start ) { + if (! net_noudp->integer ) { + NET_OpenIP(); + } + if (! net_noipx->integer ) { + NET_OpenIPX(); + } + } +} + + +/* +==================== +NET_Init +==================== +*/ +void NET_Init( void ) { + int r; + + r = WSAStartup( MAKEWORD( 1, 1 ), &winsockdata ); + if( r ) { + Com_Printf( "WARNING: Winsock initialization failed, returned %d\n", r ); + return; + } + + winsockInitialized = qtrue; + Com_Printf( "Winsock Initialized\n" ); + + // this is really just to get the cvars registered + NET_GetCvars(); + + //FIXME testing! + NET_Config( qtrue ); +} + + +/* +==================== +NET_Shutdown +==================== +*/ +void NET_Shutdown( void ) { + if ( !winsockInitialized ) { + return; + } + NET_Config( qfalse ); + WSACleanup(); + winsockInitialized = qfalse; +} + + +/* +==================== +NET_Sleep + +sleeps msec or until net socket is ready +==================== +*/ +void NET_Sleep( int msec ) { +} + + +/* +==================== +NET_Restart_f +==================== +*/ +void NET_Restart( void ) { + NET_Config( networkingEnabled ); +} |